CN218494033U - High-bearing centripetal and thrust combined bearing - Google Patents
High-bearing centripetal and thrust combined bearing Download PDFInfo
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- CN218494033U CN218494033U CN202222748599.XU CN202222748599U CN218494033U CN 218494033 U CN218494033 U CN 218494033U CN 202222748599 U CN202222748599 U CN 202222748599U CN 218494033 U CN218494033 U CN 218494033U
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Abstract
The utility model provides a high bears entad and thrust combination bearing, the up end that axial roller was kept away from to first inner circle is provided with along the first annular oil groove of axle center circumference distribution, the second inner circle corresponds the coaxial second annular oil groove that is provided with of first annular oil groove, the equal circumference evenly distributed in first annular oil groove tank bottom, second annular oil groove tank bottom has a plurality of oil filler points, circles in first inner circle and the second the oil-out of oil filler point corresponds the axial roller setting at outer lane axial both ends respectively, the periphery wall of outer lane corresponds radial oiling passageway along radially being provided with, and this oiling passageway corresponds radial raceway setting, not only can effectively reduce bearing overall structure size, reduces the seal structure of bearing, can effectively reduce bearing appearance size and weight, can also improve the inside lubricated condition of bearing, can change into oil lubrication from grease lubrication, can reduce the friction between roller and the raceway, and the bearing friction heat of friction, and the bearing generates heat and reduces, further improves bearing carrying capacity.
Description
Technical Field
The utility model relates to a high bearing centripetal and thrust combination bearing.
Background
The cylindrical roller and bidirectional thrust combined bearing consists of a thrust/centripetal race, a thrust/centripetal shaft ring, a thrust washer, two needle roller retainer assemblies and a set of centripetal cylindrical rollers. After the series of bearings are assembled, the bearings are preloaded in the axial direction and the radial direction, and can bear axial load, radial load and overturning moment in two directions. Because the bearing parts have high processing precision and uniform load distribution, the bearing has high inclination rigidity and rotation precision, is suitable for bearing configuration in high-precision rotary tables, chucks, measuring instruments and experimental equipment, and is particularly widely applied in the machine tool industry. However, because the bearing adopts grease lubrication, and lacks a structure for injecting lubricant, the retainer assembly is directly exposed outside, the lubricant is easy to be thrown out in the use process, and a sealing groove is required to be arranged on an inner ring or an outer ring of the bearing in use, so that the design complexity of equipment is increased, and the use range of the bearing is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a high bearing centripetal and thrust combination bearing.
In order to achieve the purpose, the utility model provides a high-bearing centripetal and thrust combined bearing, which comprises an outer ring, a first inner ring and a detachable second inner ring which is coaxially arranged with the first inner ring, wherein the first inner ring and the second inner ring are connected by a fastening bolt; axial rollers for bearing axial bearing capacity are arranged at two axial ends of the outer ring respectively corresponding to the first inner ring and the second inner ring, and the axial rollers are provided with retainers; the first inner ring is provided with a radial raceway of an annular sunken groove along the radial direction, and the radial raceway is filled with radial rollers; two rows of axial rollers are respectively contacted with the first inner ring and the second inner ring; the oil filling device is characterized in that a first annular oil groove distributed along the axial direction is formed in the upper end face, away from the axial roller, of the first inner ring, a second annular oil groove is formed in the second inner ring and corresponds to the first annular oil groove in a coaxial mode, a plurality of oil filling holes are uniformly distributed in the circumferential direction of the bottom of the first annular oil groove and the bottom of the second annular oil groove, oil outlets of the oil filling holes in the first inner ring and the second inner ring correspond to the axial rollers at two axial ends of the outer ring respectively, an oil filling channel is formed in the outer circumferential wall of the outer ring along the radial direction and corresponds to the radial roller path, and a dust cover used for shielding grease is arranged between the outer ring and the first inner ring and between the outer ring and the second inner ring.
The utility model has the advantages that: the utility model discloses a set up at first interior first annular oil groove of circle and set up and carry out the oiling at the second inner circle and with the coaxial second annular oil groove of first annular oil groove, through the oil-out on first annular oil groove and second annular oil groove towards the oil filler point direction oiling of the axial roller at outer lane axial both ends, set up the radial oiling passageway of periphery wall of outer lane can carry out the oil lubrication to radial roller, can adopt the oil lubrication to the roller through annular oil groove and oil filler point, not only can effectively reduce bearing overall structure size, reduce the seal structure of bearing, can effectively reduce bearing appearance size and weight, can also improve the inside lubricated condition of bearing, can change into the oil lubrication from the grease lubrication, can reduce the friction between roller and the raceway, take away bearing friction heat, the bearing generates heat and reduces, further improves bearing capacity.
Further, outer lane circumference evenly distributed has a plurality of mounting holes that supply the installation, the shield sets up respectively on outer lane axial both ends face, the shield is including setting up between mounting hole and axial roller and can dismantle the stiff end of being connected, be close to the extension end that the mounting hole set up, connect the stiff end and the connection inclined plane of extension end with the outer lane in the stiff end.
Through adopting above-mentioned technical scheme, the stiff end of shield can be followed the dismantlement on the outer lane, can make things convenient for the installation of roller between outer lane and the inner circle, buckle between the stiff end of shield, the extension end, make the stiff end more be close to the roller to improve the effect of shielding of bearing during operation fixed end to lubricating oil, the mounting hole is not shielded to the extension end on the axial direction, the installation that the shield can be made things convenient for to the extension end, the setting on connection inclined plane can improve the intensity of shield, improves the stability of shield, and better prevent that the dust from getting into in the bearing.
Furthermore, the axial rollers arranged on the two end faces of the outer ring in the axial direction are provided with connecting channels arranged along the axial direction of the outer ring, so that the lubricating oil of the two rows of axial rollers can be communicated through the connecting channels.
Through adopting the above technical scheme, be provided with the interface channel who connects both ends face axial roller on the outer lane, interface channel can guarantee axial roller and the contact surface of outer lane and be full of lubricating oil with the contact surface of inner circle to guarantee axial roller's lubricated effect, improve the rotation effect of roller, interface channel can place when carrying out the oiling at the bearing, the oil filler hole through first annular oil groove carries out the oiling to the axial roller of upside, lubricating oil can flow through interface channel through gravity and flow to the downside on the contact surface of axial roller and outer lane, thereby can reduce the number of times and how much of oiling, thereby improve the oiling effect.
Furthermore, the oil filler point that the second inner circle corresponds is provided with the end cap that is used for its shutoff, the end cap is including pegging graft the drive end that sets up the grafting end in the oil filler point and set up in second annular oil groove and be used for driving the activity of grafting end, the grafting end is provided with the elastic component, elastic component and the inner wall interference fit of oil filler point are in order to form the shutoff of end cap to oil filler point.
Through adopting above-mentioned technical scheme, it is more convenient to install, and the oil filler point is difficult to the pressure equipment back damage, is provided with the light interference of grafting end and the oil filler point of elastic component, prevents not hard up phenomenon behind its tip installation entering oil filler point. The oil filling hole can not be deformed, the deformation of the oil filling hole caused by installation can be effectively avoided, the end cap can be prevented from falling off from the oil filling hole, the plugging effect of the end cap is improved, lubricating oil is stored in the oil filling hole, and the axial roller can be lubricated for a long time.
Furthermore, a plurality of hoisting holes for installation and threaded holes for installation with the second inner ring are uniformly arranged in the circumferential direction of the upper end surface of the first inner ring, and the hoisting holes and the threaded holes are arranged at intervals.
By adopting the technical scheme, the hoisting holes and the threaded holes are uniformly distributed on the upper end surface of the first inner ring, so that the bearing is convenient to mount integrally, and the hoisting holes and the threaded holes are arranged at intervals so as to be convenient to bear stably during hoisting or bolt connection.
Furthermore, the shape of the mounting matching surface of the driving end corresponding to the second annular oil groove is matched with that of the second annular oil groove.
Through adopting above-mentioned technical scheme, the installation fitting surface of end cap and second annular oil groove looks adaptation can improve the installation effect of end cap, reduce the clearance between end cap and the oil groove, improve wholeness, prevent including the circle to rotate rocking of in-process end cap to reduce the shutoff effect of end cap.
Drawings
Fig. 1 is a schematic sectional structure diagram in an embodiment of the present invention;
fig. 2 is a schematic top view of an embodiment of the present invention;
fig. 3 is a partially enlarged view of a portion a of fig. 1.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings: as shown in fig. 1-3, the high-bearing centripetal and thrust combined bearing comprises an outer ring 1, a first inner ring 2, and a detachable second inner ring 3 coaxially arranged with the first inner ring 2, wherein the first inner ring 2 is connected with the second inner ring 3 by a fastening bolt; axial rollers 4 for bearing axial bearing capacity are arranged at two axial ends of the outer ring 1 corresponding to the first inner ring 2 and the second inner ring 3 respectively, and the axial rollers 4 are provided with retainers 5; the first inner ring 2 is provided with a radial raceway 6 of an annular sunken groove along the radial direction, and the radial raceway 6 is filled with radial rollers 7; two rows of axial rollers 4 are respectively in contact with the first inner ring and the second inner ring 3; the upper end face, far away from axial roller 4, of first inner ring 2 is provided with a first annular oil groove 8 distributed along the axis circumference, second inner ring 3 is coaxially provided with a second annular oil groove 9 corresponding to first annular oil groove 8, a plurality of oil filling holes 10 are uniformly distributed at the bottoms of first annular oil groove 8 and second annular oil groove 9 in the circumferential direction, the oil outlets of oil filling holes 10 on first inner ring 2 and second inner ring 3 correspond to axial rollers 4 at two axial ends of outer ring 1 respectively, the peripheral wall of outer ring 1 is provided with oil filling channel 11 along the radial direction, the oil filling channel 11 corresponds to radial roller path 6, and dust covers 12 for shielding grease are arranged between outer ring 1 and first inner ring 2 and second inner ring 3.
1 circumference evenly distributed of outer lane has a plurality of mounting holes 13 that supply the installation, shield 12 sets up respectively on 1 axial both ends face in outer lane, shield 12 is including setting up between mounting hole 13 and axial roller 4 and can dismantle the stiff end 14 of being connected, compare in stiff end 14 be close to the extension end 15 that mounting hole 13 set up, connect stiff end 14 and the connection inclined plane 16 that extends end 15 with outer lane 1.
The axial rollers 4 arranged on the outer ring 1 corresponding to the two axial end faces are provided with connecting channels 17 arranged along the axial direction of the outer ring 1, so that the lubricating oil of the two rows of axial rollers 4 is communicated through the connecting channels 17.
The oil filling hole 10 corresponding to the second inner ring 3 is provided with a plug 18 for plugging the oil filling hole, the plug 18 comprises an insertion end 19 inserted into the oil filling hole 10 and a driving end 20 arranged in the second annular oil groove 9 and used for driving the insertion end 19 to move, the insertion end 19 is provided with an elastic part 21, and the elastic part 21 is in interference fit with the inner wall of the oil filling hole 10 to plug the oil filling hole 10 by the plug 18.
The upper end face circumference of first inner circle 2 evenly is provided with a plurality of hole for hoist 22 of confession installation and the screw hole 23 of installing with second inner circle 3, and a plurality of hole for hoist 22 and a plurality of screw hole 23 interval set up.
The driving end 20 is matched with the second annular oil groove 9 in shape corresponding to the mounting matching surface of the second annular oil groove 9.
The bearing outer ring is provided with a mounting hole 13 and a hoisting hole, the mounting hole 13 is a through hole which is in bolt connection with a threaded hole on the base, the outer ring and the base are locked, and the outer ring is a fixed ring and does not rotate; the hoisting holes are threaded holes and used for carrying the bearing, and annular oil grooves and oil holes are formed in the outer diameter surface of the hoisting holes and are mainly used for oiling and lubricating the radial roller 7. The end surface of the first inner ring 2 is provided with a first annular oil groove 8 and a plurality of oil injection holes 10 which are mainly used for lubricating an axially loaded roller; the end face of the first inner ring 2 is simultaneously provided with a threaded hole, the corresponding position of the second inner ring 3 is also provided with a threaded hole, the two inner rings are locked together through bolts, and the inner rings are also provided with hoisting holes as well as the outer rings for hoisting. The end surface of the second inner ring 3 is provided with an oil filling hole 10 and a second annular oil groove 9 for performing oil filling lubrication on the second row of axially loaded rollers. Two rows of axial rollers 4 bear axial load, and respectively form a thrust roller bearing with the outer ring, the inner ring and the second inner ring 3, and the thrust roller bearing has the advantages that the speed of a point of the axial roller 4 close to the axis is low, and the speed of a point far away from the axis is high, so that the stability of the axial roller 4 is poor, and the roller is guided by the retainer 5 to rotate. The rollers which are required to bear radial load are only arranged in one row, and the rolling bodies form a radial bearing in a rotating state, the states of the rolling bodies are stable, so that the retainer 5 is not arranged, the radial bearing capacity is improved by making the rolling bodies into full rollers, and meanwhile, the end surface and the outer circular surface of the outer ring are both provided with oil holes, so that even if the rollers are designed to be full, the lubrication is good, and the heat generation of the bearing is not too high.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (6)
1. A high-bearing centripetal and thrust combined bearing comprises an outer ring, a first inner ring and a detachable second inner ring which is coaxially arranged with the first inner ring, wherein the first inner ring and the second inner ring are connected by a fastening bolt; axial rollers for bearing axial bearing capacity are arranged at two axial ends of the outer ring corresponding to the first inner ring and the second inner ring respectively, and the axial rollers are provided with retainers; the first inner ring is provided with a radial raceway of an annular concave groove along the radial direction, and the radial raceway is filled with radial rollers; two rows of axial rollers are respectively contacted with the first inner ring and the second inner ring; the method is characterized in that: the oil filling device is characterized in that a first annular oil groove distributed along the axial direction is formed in the upper end face, away from the axial roller, of the first inner ring, a second annular oil groove is formed in the second inner ring in a coaxial mode and corresponds to the first annular oil groove, a plurality of oil filling holes are uniformly distributed in the circumferential direction of the bottom of the first annular oil groove and the bottom of the second annular oil groove, oil outlets of the oil filling holes in the first inner ring and the second inner ring correspond to axial roller arrangement at two axial ends of the outer ring respectively, an oil filling channel is arranged on the outer peripheral wall of the outer ring along the radial direction and corresponds to the radial roller path arrangement, and a dust cover used for shielding grease is arranged between the outer ring and the first inner ring and the second inner ring.
2. A high load bearing combined radial and thrust bearing according to claim 1, wherein: the utility model discloses a dustproof cover, including the outer lane, the outer lane circumference evenly distributed has a plurality of mounting holes that supply the installation, the dustproof cover sets up respectively on outer lane axial both ends face, the dustproof cover can dismantle the stiff end of being connected, compare in the stiff end be close to the extension end that the mounting hole set up, connect stiff end and the connection inclined plane of extension end including setting up between mounting hole and axial roller and with the outer lane.
3. A high load bearing combined radial and thrust bearing as claimed in claim 2, wherein: the axial rollers arranged on the outer ring corresponding to the two axial end faces are provided with connecting channels arranged along the axial direction of the outer ring so as to communicate lubricating oil of the two rows of axial rollers through the connecting channels.
4. A high load bearing combined radial and thrust bearing as claimed in claim 1, wherein: the oil filler point that the second inner circle corresponds is provided with the end cap that is used for its shutoff, the end cap is used for driving the drive end of grafting end activity including pegging graft the grafting end that sets up in the oil filler point and setting in second annular oil groove, the grafting end is provided with the elastic component, the elastic component is in order to form the shutoff of end cap to the oil filler point with the inner wall interference fit of oil filler point.
5. A high load bearing combined radial and thrust bearing according to claim 1, wherein: the upper end face circumference of first inner circle evenly is provided with a plurality of hole for hoist of installation and the screw hole of installing with the second inner circle, and a plurality of hole for hoist and mount and a plurality of screw hole interval set up.
6. A high load bearing combined radial and thrust bearing as claimed in claim 4, wherein: the shape of the driving end corresponding to the mounting matching surface of the second annular oil groove is matched with that of the second annular oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222748599.XU CN218494033U (en) | 2022-10-18 | 2022-10-18 | High-bearing centripetal and thrust combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222748599.XU CN218494033U (en) | 2022-10-18 | 2022-10-18 | High-bearing centripetal and thrust combined bearing |
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| Publication Number | Publication Date |
|---|---|
| CN218494033U true CN218494033U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222748599.XU Active CN218494033U (en) | 2022-10-18 | 2022-10-18 | High-bearing centripetal and thrust combined bearing |
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| Country | Link |
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| CN (1) | CN218494033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906366A (en) * | 2023-08-29 | 2023-10-20 | 哈尔滨东轻金属材料加工有限公司 | Mechanical sealing device for wear-resistant corrosion-resistant chemical pump |
-
2022
- 2022-10-18 CN CN202222748599.XU patent/CN218494033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906366A (en) * | 2023-08-29 | 2023-10-20 | 哈尔滨东轻金属材料加工有限公司 | Mechanical sealing device for wear-resistant corrosion-resistant chemical pump |
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